Thermostat



FIG. 1 is a top, front and right side perspective view of a thermostat showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a right side elevational view, the left side elevational view being a mirror image;

FIG. 4 is a front elevational view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a top, front and right side perspective view of an embodiment of FIG. 1 showing our new design. 

The ornamental design for a thermostat, as shown and described. 